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Laboratories Inc. <br />Environmental Testing Laboratory Since 1949 <br />Geologic Associates Reported: 08/24/2017 21:14 <br />11415 W. Bernardo Ct, Ste 220 Project: French Camp <br />San Diego, CA 92127 Project Number: Semi Annual <br />Project Manager: Sarah Battelle <br />Volatile Organic Analysis (EPA Method 826013) <br />Quality Control Report - Precision & Accuracy <br />Control Limits <br />Source Source Spike Percent Percent Lab <br />Constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quals <br />QC Batch ID: B[H1969 <br />J Used client sample: <br />Y - Description: <br />MW -2, 08/10/2017 12:21 <br />Benzene <br />MS <br />1722385-01 <br />ND <br />23.940 <br />25.000 <br />ug/L <br />95.8 <br />70-130 <br />MSD <br />1722385-01 <br />ND <br />24.450 <br />25.000 <br />ug/L <br />2.1 <br />97.8 <br />20 <br />70-130 <br />Bromodichloromethane <br />MS <br />1722385-01 <br />ND <br />28.760 <br />25.000 <br />ug/L <br />115 <br />70-130 <br />MSD <br />1722385-01 <br />ND <br />28.590 <br />25.000 <br />ug/L <br />0.6 <br />114 <br />20 <br />70-130 <br />Chlorobenzene <br />MS <br />1722385-01 <br />ND <br />24.790 <br />25.000 <br />ug/L <br />99.2 <br />70-130 <br />MSD <br />1722385-01 <br />ND <br />24.640 <br />25.000 <br />ug/L <br />0.6 <br />98.6 <br />20 <br />70-130 <br />Chloroethane <br />MS <br />1722385-01 <br />ND <br />24.620 <br />25.000 <br />ug/L <br />98.5 <br />70-130 <br />MSD <br />1722385-01 <br />ND <br />24.940 <br />25.000 <br />ug/L <br />1.3 <br />99.8 <br />20 <br />70-130 <br />1,4 -Dichlorobenzene <br />MS <br />1722385-01 <br />ND <br />26.090 <br />25.000 <br />ug/L. <br />104 <br />70-130 <br />MSD <br />1722385-01 <br />ND <br />24.830 <br />25.000 <br />ug/L <br />4.9 <br />99.3 <br />20 <br />70-130 <br />1,1-Dichloroethane <br />MS <br />1722385-01 <br />ND <br />25.540 <br />25.000 <br />ug/L <br />102 <br />70-130 <br />MSD <br />1722385-01 <br />ND <br />26.050 <br />25.000 <br />ug/L <br />2.0 <br />104 <br />20 <br />70-130 <br />1,1-Dichloroethene <br />MS <br />1722385-01 <br />ND <br />27.960 <br />25.000 <br />ug/L <br />112 <br />70-130 <br />MSD <br />1722385-01 <br />ND <br />27.880 <br />25.000 <br />ug/L <br />0.3 <br />112 <br />20 <br />70-130 <br />Toluene <br />MS <br />1722385-01 <br />ND <br />25.480 <br />25.000 <br />ug/L <br />102 <br />70-130 <br />MSD <br />1722385-01 <br />ND <br />26.400 <br />25.000 <br />ug/L <br />3.5 <br />106 <br />20 <br />70-130 <br />Trichloroethene <br />MS <br />1722385-01 <br />ND <br />26.040 <br />25.000 <br />ug/L <br />104 <br />70-130 <br />MSD <br />1722385-01 <br />ND <br />26.920 <br />25.000 <br />ug/L <br />3.3 <br />108 <br />20 <br />70-130 <br />1,2-Dichloroethane-d4 (Surrogate) <br />MS <br />1722385-01 <br />ND <br />10.920 <br />10.000 <br />ug/L <br />109 <br />75-125 <br />MSD <br />1722385-01 <br />ND <br />10.660 <br />10.000 <br />ug/L. <br />2.4 <br />107 <br />75-125 <br />Toluene -d8 (Surrogate) <br />MS <br />1722385-01 <br />ND <br />9.9800 <br />10.000 <br />ug/L <br />99.8 <br />80-120 <br />MSD <br />1722385-01 <br />ND <br />10.020 <br />10.000 <br />ug/L <br />0.4 <br />100 <br />80-120 <br />4-Bromofluorobenzene (Surrogate) <br />MS <br />1722385-01 <br />ND <br />10.370 <br />10.000 <br />ug/L <br />104 <br />80-120 <br />MSD <br />1722385-01 <br />ND <br />9.7700 <br />10.000 <br />ug/L. <br />6.0 <br />97.7 <br />80-120 <br />L <br />The results in this report apply to the ,samples onalvZed in accordance with the chain of custodv document This analytical report muss he reproduced in its entirety. <br />All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. <br />Report ID: 1000641231 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bc[abs.com Page 64 of 69 <br />